Don't the Eastern Orthodox also have a canon law that they must follow, and don't they cite the Church Fathers regularly?

The purpose of Canon Laws have become different between East and West. Sadly, every internet Roman Catholic thinks he is a Canon Law expert and can use it to win internet debates or admonish someone else.

I won't even touch the stuff. For a person to really use canon law in a debate, that person has to be pretty well acquainted with the law.

I agree. Sadly I have been there and done that. That is why I realize it is ridiculous for people to think they can liberally apply the law to anyone, anytime. It is not as simple as that and Canon Law was not meant to be used for that.

Don't the Eastern Orthodox also have a canon law that they must follow, and don't they cite the Church Fathers regularly?

The purpose of Canon Laws have become different between East and West. Sadly, every internet Roman Catholic thinks he is a Canon Law expert and can use it to win internet debates or admonish someone else.

Do you mean "Roman Catholic" in the sense of "Latin Catholic"? (Which seems to be its usual definition on CAF, but I don't want to assume, since that could lead to misunderstandings down the line.)